/*
 * Copyright (C) 2023 Cash App
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package app.cash.zipline.testing

import java.util.concurrent.LinkedBlockingQueue
import java.util.concurrent.ThreadPoolExecutor
import java.util.concurrent.TimeUnit
import kotlinx.coroutines.CloseableCoroutineDispatcher
import kotlinx.coroutines.asCoroutineDispatcher

actual fun singleThreadCoroutineDispatcher(
  name: String,
  stackSize: Int,
): CloseableCoroutineDispatcher {
  val executorService = ThreadPoolExecutor(
    0,
    1,
    100,
    TimeUnit.MILLISECONDS,
    LinkedBlockingQueue(),
  ) { runnable ->
    Thread(null, runnable, name, stackSize.toLong())
  }

  return executorService.asCoroutineDispatcher()
}
